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<h4 class="subsection">11.11.2 Anonymous Functions</h4>
<p>Anonymous functions are defined using the syntax
</p>
<div class="example">
<pre class="example">@(<var>argument-list</var>) <var>expression</var>
</pre></div>
<p>Any variables that are not found in the argument list are inherited from
the enclosing scope. Anonymous functions are useful for creating simple
unnamed functions from expressions or for wrapping calls to other
functions to adapt them for use by functions like <code>quad</code>. For
example,
</p>
<div class="example">
<pre class="example">f = @(x) x.^2;
quad (f, 0, 10)
⇒ 333.33
</pre></div>
<p>creates a simple unnamed function from the expression <code>x.^2</code> and
passes it to <code>quad</code>,
</p>
<div class="example">
<pre class="example">quad (@(x) sin (x), 0, pi)
⇒ 2
</pre></div>
<p>wraps another function, and
</p>
<div class="example">
<pre class="example">a = 1;
b = 2;
quad (@(x) betainc (x, a, b), 0, 0.4)
⇒ 0.13867
</pre></div>
<p>adapts a function with several parameters to the form required by
<code>quad</code>. In this example, the values of <var>a</var> and <var>b</var> that
are passed to <code>betainc</code> are inherited from the current
environment.
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